Of course asteroids observers keep their eyes to the opposition webpage as these space rocks brighten 0.5 in magnitude, but which software do You prefer to plan Your observations?
theSky ... SkymapPro... other ?

As far as programs. I use Cartes du Ciel. Unfortunately I had problems with the new 3 versions with my Vista. It would not run right or give good positions. Also when running my Atlas mount is was always off at least a few degrees in pointing. I recently had to uninstall and go back to the older 2.76. Right now I can't find the instructions I had to change the web address for the asteroid update files. William

Looks like most asteroids observers I know use StarryNight Pro or theSky X

Do those programs use astorb or mcorb data of all asteroids? Or just the monthly dat files? Cartes uses both. I tried to use Starry Night on my Vista laptop. It would not work and had to get a refund. Right now I'm back to using Cartes 2.76 since the 3 keep crashing my Vista. William

I've always used Megastar. Unfortunately it doesn't seem to be supported much anymore, but it's the program that I have been familiar with for the past 20 years. With it I have observed 1460 different asteroids visually.